29_xml文件的序列化

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public void backUp2(View view){//获得xml序列化对象XmlSerializer xs =Xml.newSerializer();try {File file = new File(Environment.getExternalStorageDirectory(),"backUp2.xml");FileOutputStream fs = new FileOutputStream(file);//xml文件写入输出流，以utf-8编码保存文件xs.setOutput(fs, "utf-8");xs.startDocument("utf-8", true);//开始文档，encoding编码格式，是否是独立文件xs.startTag(null, "Smss");//开始标签xs.attribute(null, "id", "sms");//添加id属性for(Sms sms : list){xs.startTag(null,"body");xs.text(sms.getBody());xs.endTag(null, "body");xs.startTag(null, "address");xs.text(sms.getAddress());xs.endTag(null, "address");xs.startTag(null, "date");xs.text(Long.toString(sms.getDate()));xs.endTag(null, "date");xs.startTag(null, "type");xs.text(Integer.toString(sms.getType()));xs.endTag(null, "type");}xs.endTag(null, "Smss");//结束标签xs.endDocument();//结束} catch (Exception e) {e.printStackTrace();Toast.makeText(this, "保存失败！", 0);}}

XmlSerializer xs =Xml.newSerializer();

面向对象XML

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